@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== Theme Variables ===== */
:root {
  --color-brand-aqua: #0891B2;
  --color-brand-aqua-light: #22D3EE;
  --color-brand-aqua-dark: #0E7490;
  --color-brand-navy: #0F172A;
  --color-brand-navy-light: #1E293B;
  --color-brand-bg: #F8FAFC;
  --color-brand-text: #334155;
}

body {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  background-color: var(--color-brand-bg);
  color: var(--color-brand-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Header nav colors ===== */
/* Default (homepage / light background): dark nav text */
#site-header .nav-link {
  color: var(--color-brand-navy-light);
}
#site-header .nav-link:hover {
  color: var(--color-brand-aqua);
}
#site-header .nav-cta {
  background-color: var(--color-brand-navy);
  color: #fff;
}
#site-header .nav-cta:hover {
  background-color: var(--color-brand-aqua);
}
#site-header #mobile-menu-toggle {
  color: var(--color-brand-navy);
}

/* Logo colors (default) */
#site-header .logo-name { color: var(--color-brand-navy); }
#site-header .logo-sub  { color: var(--color-brand-aqua-dark); }


/* ===== Glass Panel ===== */
.glass-panel {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out 0.2s forwards;
  opacity: 0;
}

/* Scroll-triggered animations */
.scroll-animate {
  opacity: 0;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-animate[data-animation="fade-in-up"] {
  transform: translateY(20px);
}

.scroll-animate[data-animation="fade-in-left"] {
  transform: translateX(-20px);
}

.scroll-animate[data-animation="fade-in-right"] {
  transform: translateX(20px);
}

.scroll-animate.is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

/* ===== Selection ===== */
::selection {
  background-color: var(--color-brand-aqua);
  color: white;
}

/* ===== Prose / Content Styling ===== */
.prose {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-brand-text);
}

.prose h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.prose h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.prose h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.prose p {
  margin-bottom: 1.25rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.prose ul {
  list-style-type: disc;
}

.prose ol {
  list-style-type: decimal;
}

.prose li {
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

.prose li::marker {
  color: var(--color-brand-aqua);
}

.prose a {
  color: var(--color-brand-aqua);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.prose a:hover {
  color: var(--color-brand-aqua-dark);
  text-decoration: underline;
}

.prose strong {
  color: var(--color-brand-navy);
  font-weight: 600;
}

.prose blockquote {
  border-left: 4px solid var(--color-brand-aqua);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background-color: var(--color-brand-bg);
  border-radius: 0 0.75rem 0.75rem 0;
  font-style: italic;
  color: #475569;
}

.prose blockquote p {
  margin-bottom: 0;
}

.prose hr {
  border: none;
  border-top: 1px solid #e2e8f0;
  margin: 2.5rem 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 1rem;
}

.prose thead th {
  text-align: left;
  font-weight: 600;
  color: var(--color-brand-navy);
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-brand-aqua);
  background-color: var(--color-brand-bg);
}

.prose tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.prose tbody tr:last-child td {
  border-bottom: none;
}

.prose tbody tr:hover {
  background-color: var(--color-brand-bg);
}

.prose img {
  border-radius: 1rem;
  margin: 1.5rem 0;
  max-width: 100%;
  height: auto;
}

.prose > *:first-child {
  margin-top: 0;
}

/* ===== Responsive adjustments ===== */
@media (max-width: 640px) {
  .prose {
    font-size: 1rem;
  }

  .prose h2 {
    font-size: 1.5rem;
  }

  .prose h3 {
    font-size: 1.25rem;
  }

  .prose table {
    font-size: 0.875rem;
  }

  .prose thead th,
  .prose tbody td {
    padding: 0.5rem 0.75rem;
  }
}